Washing machine using electromagnet to drain water and its electromagnet member for draining water
A magnet assembly, washing machine technology, applied in other washing machines, engine components, applications, etc., can solve the problems of high material unit price, high winding and insulation treatment process requirements, power electromagnetic interference, etc., to simplify the structure and improve electromagnetic compatibility. , the effect of improving reliability
Active Publication Date: 2006-01-04
JINLING ELECTRICAL CO LTD
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Problems solved by technology
[0005] 2. The electromagnet uses a two-stage winding structure, and its holding winding is a thin wire diameter winding. The unit price of the material is high, and it requires high winding and insulation treatment process requirements
This method can overcome the shortcomings of the winding structure and position switch of the traditional DC drainage electromagnet, thus improving reliability and reducing cost, but the bidirectional thyristor phase-shifting voltage regulation circuit will cause some electromagnetic interference to the power supply, and it was implemented in August 2003 for implementation. The EMC standards involved in the 3C certification need to be supplemented with appropriate filter circuits
In addition, this design is not suitable for washing machines controlled by contact circuits such as motor-type program controllers.
Method used
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[0020] Such as figure 1 The prior art shows a basic mechanical structure of a washing machine. A water tub 1 is rotatably provided with a washing tub and dehydration tub 3 rotatably provided with a pulsator 2 at the inner bottom. Middle; the motor and its transmission mechanism 7 are located at the bottom of the water tank 1, and the power is transmitted to the pulsator 2 and the washing bucket and dehydration bucket 3; the water supply system 8 supplies water to the washing bucket and dehydration bucket 3, and the drain valve 9 is controlled by the electromagnet 14 traction, the washing water etc. in the washing and dehydration bucket 3 are discharged. This is a typical composition of a pulsator type automatic washing machine. However, it is not limited to the pulsator type washing machine, and may also be an agitator type washing machine or a drum type washing machine. In addition, the electromagnet 14 can also be linked with the traction deceleration clutch to make the wa...
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The present invention relates to washing machine with water draining electromagnet and its water draining electromagnet assembly. The washing machine is provided with power supply device, water draining / eliminating mechanism with drafting electromagnet. The electromagnet winding is connected via the drive circuit to the power supply to constitute closed loop with serially connected PTC resistor. The closed loop may include control switch, PTC resistor and rectifier, and the rectifier has AC input connected via the control switch and the PTC resistor to the power supply and DC output connected to the DC electromagnet winding. The water draining electromagnet assembly includes installation part, PTC resistor, rectifier, DC electromagnet and input terminal. The PTC resistor may have capacitor connected in parallel. The present invention has improved circuit structure and function and lowered cost.
Description
technical field [0001] The invention relates to a washing machine using a drain electromagnet and a drain electromagnet assembly thereof, which belong to D06F39 / 08 or F16K31 / 06 in the International Patent Classification Table. Background technique [0002] The washing machine using the drain electromagnet is equipped with: the drain valve, the drain electromagnet (hereinafter referred to as the electromagnet) that pulls the drain valve, and the control circuit that outputs voltage to the electromagnet; when the drain valve is opened, the control circuit outputs a pull-in voltage to the electromagnet Make it start to pull in; during the opening period of the drain valve, output a holding voltage to the electromagnet to keep it in the state of pulling in. [0003] Early washing machines used single-winding AC electromagnets directly powered by AC power. Due to serious electromagnetic noise and safety problems, most of them were later changed to DC drain electromagnets. Its re...
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Inventor 区长钊
Owner JINLING ELECTRICAL CO LTD